INVESTIGADORES
CUETO Victor Rodolfo
artículos
Título:
Bird assemblages of protected and exploited coastal woodlands in east-central Argentina
Autor/es:
CUETO, V. R.; LOPEZ DE CASENAVE, J.
Revista:
Wilson Bulletin
Editorial:
Wilson Ornithological Society
Referencias:
Año: 2000 vol. 112 p. 396 - 403
Resumen:
We surveyed vegetation and bird assemblages in protected and exploited woodlands in the
warm temperate, coastal woodlands of Buenos Aires Province, Argentina. Exploited woodland experienced
selective logging of Celtis tala until at least 1960; presently it is used for sheltering domestic livestock. Vertical
structure and floristic composition were simpler in exploited than in protected woodland. Likewise, avian density
and species richness were lower in exploited woodland. Viewing the avifaunas from a guild perspective, we
found the insectivore guild and frugivore-insectivore guild differed substantially between protected and exploited
woodlands. The bird densities of these guilds were higher in protected woodland, and the species richness of
the insectivore guild was lower in the exploited woodland. Apparently the insectivore guild responded primarily
to structural differences, whereas the frugivore-insectivore guild may have responded more to differences in
floristic composition. The granivore guild also differed between the two woodlands, but primarily because of
changes in the density of the Rufous-collared Sparrow (Zonotrichia capensis). This bird species was more
abundant in the protected woodland.Celtis tala until at least 1960; presently it is used for sheltering domestic livestock. Vertical
structure and floristic composition were simpler in exploited than in protected woodland. Likewise, avian density
and species richness were lower in exploited woodland. Viewing the avifaunas from a guild perspective, we
found the insectivore guild and frugivore-insectivore guild differed substantially between protected and exploited
woodlands. The bird densities of these guilds were higher in protected woodland, and the species richness of
the insectivore guild was lower in the exploited woodland. Apparently the insectivore guild responded primarily
to structural differences, whereas the frugivore-insectivore guild may have responded more to differences in
floristic composition. The granivore guild also differed between the two woodlands, but primarily because of
changes in the density of the Rufous-collared Sparrow (Zonotrichia capensis). This bird species was more
abundant in the protected woodland.Zonotrichia capensis). This bird species was more
abundant in the protected woodland.